/**
page_mode : 0, small page ; 1 large page
*/
STATIC_PREFIX int nf_send_read_cmd(unsigned page_off,unsigned page_mode)
{
while (NFC_CMDFIFO_SIZE() > 15);
NFC_SEND_CMD_CLE(CE0,0); //Send NAND read start command
NFC_SEND_CMD_ALE(CE0,0); // Send Address
if(page_mode)
NFC_SEND_CMD_ALE(CE0,0);
NFC_SEND_CMD_ALE(CE0,page_off&0xff);
NFC_SEND_CMD_ALE(CE0,(page_off&0xff00)>>8);
NFC_SEND_CMD_ALE(CE0,(page_off&0xff0000)>>16);
if(page_mode)
NFC_SEND_CMD_CLE(CE0,0x30);
/** waiting for tWB **/
NFC_SEND_CMD_IDLE(CE0,5); // tWB
NFC_SEND_CMD_RB(CE0,14);
if(((NFC_INFO_GET()>>26)&1))
{
serial_puts("BUG RB CMD\n");
while(!((NFC_INFO_GET()>>26)&1));
}
NFC_SEND_CMD_IDLE(CE0,0);
while (NFC_CMDFIFO_SIZE() > 0); // all cmd is finished
return 0;
}
void nf_erase(void)
{
int i;
nf_cntl_init(romboot_info);
for(i=0;i<4;i++)
{
NFC_SEND_CMD_CLE(CE0,0x60);
NFC_SEND_CMD_ALE(CE0,0);
NFC_SEND_CMD_ALE(CE0,i);
NFC_SEND_CMD_ALE(CE0,0);
NFC_SEND_CMD_CLE(CE0,0xd0);
NFC_SEND_CMD_RB(CE0,0);
}
NFC_SEND_CMD_IDLE(CE0,0); // FIFO cleanup
NFC_SEND_CMD_IDLE(CE0,0); // FIFO cleanup
while(NFC_CMDFIFO_SIZE()>0); // wait until all command is finished
}
STATIC_PREFIX void nf_reset(t_nf_ce ce)
{
NFC_SEND_CMD(1<<31);
NFC_SEND_CMD_IDLE(ce,0); // FIFO cleanup
NFC_SEND_CMD_CLE(ce,0xff); //Send reset command
NFC_SEND_CMD_IDLE(ce,10); //Wait tWB
NFC_SEND_CMD_RB(ce,15); //Wait Busy Signal
NFC_SEND_CMD_IDLE(ce,0); // FIFO cleanup
NFC_SEND_CMD_IDLE(ce,0); // FIFO cleanup
while(NFC_CMDFIFO_SIZE()>0) // wait until all command is finished
{
if(NFC_CHECEK_RB_TIMEOUT()) // RB time out
break;
}
while(!((NFC_INFO_GET()>>26)&1));
}
